gnome-system-tools-2.14.0_1 build failure

[J. W. Ballantine]

After the release of gnome-2.16 in the ports tree, I did a complete
reload of 6.1-RELEASE, and a cvsup of STABLE and ports, a build/install of
the system and a build install of gnome2.  Everything ran fine and
I was able to start up gnome.

I then did another cvsup, this time including marcuscom.com with the
marcusmerge.sh -m ports-stable and marcusmerge.sh -m ports.  I then
did a portsupgrade -a and gnome-system-tools failed with:

 install  -o root -g wheel -m 444 'oobs-servicesconfig.h' 
'/usr/local/include/liboobs-1.0/oobs//oobs-servicesconfig.h'
 install  -o root -g wheel -m 444 'oobs-service.h' 
'/usr/local/include/liboobs-1.0/oobs//oobs-service.h'
 install  -o root -g wheel -m 444 'oobs-result.h' '/usr/local/include/liboobs-1
.0/oobs//oobs-result.h'
test -z "/usr/local/libdata/pkgconfig" || /usr/ports/devel/liboobs/work/liboobs
-0.6.0/install-sh -d "/usr/local/libdata/pkgconfig"
 install  -o root -g wheel -m 444 'liboobs-1.pc' '/usr/local/libdata/pkgconfig/
liboobs-1.pc'
===>   Running ldconfig
/sbin/ldconfig -m /usr/local/lib
===>   Registering installation for liboobs-0.6.0
===>   Returning to build of gnome-system-tools-2.15.0
Error: shared library "oobs-1.0" does not exist
*** Error code 1

Stop in /usr/ports/sysutils/gnome-system-tools.
** Command failed [exit code 1]: /usr/bin/script -qa /tmp/portupgrade.21913.1 
env PORT_UPGRADE=yes make
** Fix the problem and try again.

What has to be built to make/install shared library "oobs-1.0"?

Thanks

Jim